So, physical width of each page is (3660/300) = 12 inch, physical height of each page is (5163/300) = 17 inch, area of each page is 12*17 = 204 inch2. And the page counter decreases by (204 inch2/97 inch2) = 2 times for this page, because the size of A4 page is (8,27 inches * 11,69 inches = 97 inch2).